Onex's tend to run smaller than other brands because they are built using Italian bottoms, which follow European sizing standards more closely than U.S. For this reason it is recommended that you order 1/2 to 1 full size larger than your usual size.
We will be more than happy to exchange your order for another size if you feel that the shoe is either too big or too small.
| ONEX | US | EU | UK | CAN | JPN |
|---|---|---|---|---|---|
| N/A | 4 | 34 | 2 | 4 | 21 |
| 5 | 4.5 | 34.5 | 2.5 | 4.5 | 21.5 |
| 5 | 5 | 35 | 3 | 5 | 22 |
| 6 | 5.5 | 35.5 | 3.5 | 5.5 | 22.5 |
| 6 | 6 | 36 | 4 | 6 | 23 |
| 7 | 6.5 | 36.5 | 4.5 | 6.5 | 23.5 |
| 7 | 7 | 37 | 5 | 7 | 24 |
| 8 | 7.5 | 37.5 | 5.5 | 7.5 | 24.5 |
| 8 | 8 | 38 | 6 | 8 | 25 |
| 9 | 8.5 | 38.5 | 6.5 | 8.5 | 25.5 |
| 9 | 9 | 39 | 7 | 9 | 26 |
| 10 | 9.5 | 39.5 | 7.5 | 9.5 | 26.5 |
| 10 | 10 | 40 | 8 | 10 | 27 |
| 11 | 10.5 | 40.5 | 8.5 | 10.5 | 27.5 |
| 11 | 11 | 41 | 9 | 11 | 28 |
| N/A | 11.5 | 41.5 | 9.5 | 11.5 | 28.5 |
| N/A | 12 | 42 | 10 | 12 | 29 |
| N/A | 13 | 43 | 11 | 13 | 30 |
| N/A | 14 | 44 | 12 | 14 | 31 |